Support structure for isolating earthquake motions

ABSTRACT

A support structure for isolating earthquake motions having a pressure receiving concave curved steel plate connected with the ground and a pressure applying convex curved steel plate facing with said concaved steel plate and connected with a column of a structure. The support structure has a plurarities of large balls and small balls with (less accuracy) smaller diameter than that of pressure-receiving balls between said two plates in a state that they are mounted to come in point contact in all directions. Earthquake is isolated by a simultaneous rotation of these two groups of balls in frictionless state. The lower portion of the support structure is surrounded by a hoop to suppress the foundation column not to remove from pressure receiving balls in case of jump-up phenomenon caused by directly under earthquake or float-up phenomenon caused by typhoon etc.

BACKGROUND OF THE INVENTION

[0001] The present invention has to do with a support structure for isolating earthquake motions, and more particularly, to prevent a chain vibrations of a structure from earthquake and/or wild storm such as hurrican.

[0002] Heretofore, conventional earthquake-proof constructions are based on methods to alleviate gearing of earthquake motions by intermediately connecting elastic materials such as springs, rubber, lead and balancer etc. between a foundation and a bottom of structures.

[0003] Present invention is to provide another unique method to isolate linkage vibration of the eathquake and wild storm to above structures taking advantage of frictionless nature in small balls.

SUMMARY OF THE INVENTION

[0004] The present invention is designed to put a constructions on a collective block of frictionless large and small steel balls.

[0005] Explaining my invention in more detail, the device is designed to interpose steel balls between pressure-receiving and pressure-applying spherical curved surfaces facing each other as shown in annexed drawings, hence transmission of earthquake motions are isolated by frictionless rolling of above said two types of balls interposed between the two curved spherical surfaces facing each other as soon as earthquke occurs. This is the case, just like the case of a ship on the water, in which we have no earthquake feeling since trembles are isolated by allowing the waving water to receive and transforming them into rolling forces of the water wave.

[0006] A preferred form of the invention is illustrated in the accompanying drawings in which:

[0007]FIG. 1 is a plan view of the invention showing a fundation hoop trembled from the east to the north direction.

[0008]FIG. 2 is a sectional view of a composition of the fundation hoop, a colum, a structure foundation and a frictionless slide of the invention.

[0009]FIG. 3 is a imaginary view of a linkage movement of the foundation hoop when an earthquake occurs.

[0010]FIG. 4 is perspective view of a aligning frame for sliding balls when earthquake motions were isolated.

[0011]FIG. 5 is is a perspective view of the hoop of the invention.

[0012]FIG. 6 is a perspective view of the hoop aligning frame.

[0013]FIG. 7 is a view fixing hole for ballsortion which

[0014]FIG. 7-1 is a perspective view of portions which closed for large balls and opened for small balls.

[0015]FIG. 8 is a sectional view of press working of a concave curved surface and a convex curved surface.

[0016]FIG. 9 is a partial perspective view of a ball holes.

[0017]FIG. 10 is a partial perspective view of a frictionless sliding concave portion.

[0018]FIG. 11 is a set view of concaved and convexed steel plates piled on spherical curved steel and iron blocks.

REFERENTIAL NUMERALS IN THE DRAWINGS

[0019]1—foundation hoop.

[0020]2—connecting bolts of concave curved surface convex curved surface.

[0021]3—pressure-receiving large balls (10.318 mm.).

[0022]4—rolling unyfing small balls in point contact with large large balls (4).

[0023]5—concave formed steel plate of pressure-receiving surface.

[0024]6—convex formed steel plate of pressure-applying surface.

[0025]7—ball aligning frame.

[0026]8—sodium silicate.

[0027]9—foundation of column.

[0028]10—liquid replenishing pipe.

[0029]11—liquid sealing packing.

[0030]12—polybinyl chloride ball cover.

[0031]13—concrete covering all the surface of top and bottom steel plates.

[0032]14—connecting steel frame for hoop tightning.

[0033]15—steel and iron concrete frame.

[0034]16—spherical surface iron and steel reinforced concrete of concaved slide block.

[0035]17—bolts for pressing spherical surface.

[0036]18—pressing bolts and nuts.

[0037]19—provisional tightning portion for spherical surface.

[0038]20—provisional concrete frame.

[0039]21—pressings slots.

[0040]22—iron frame for spherical surface.

[0041]23—foundation hoop (same as the numeral 1)

[0042]24—foop tightning frame.

[0043]25—ball sliding block.

[0044]26—fixing tool for ball holes.

[0045]27—fixing tool for large and small balls.

DETAILED DESCRIPTION OF THE INVENTION

[0046] According to my invention, steel balls (3) and (4) are interposed between pressure-receiving spherical curved steel plate (5) and pressure-applying spherical curved steel plate (6) as shown in the drawing 1. The peripheral scales of these plate are adjusted with that of a bottom of a structure such as a house or building to be built.

[0047] These plates are made of steel and used as a ball receiver. The shape of the pressure-receiving plate is recessed concave formed one and another pressure-applying plate is convex formed one.

[0048] These two oppositing spherical plates are used as foundation of the building and also for the purpose of isolating earthquake mortions as above described.

[0049] Pressure-receiving steel balls and balls with (less accuracy) smaller diameter than that of pressure-receiving balls are mounted to come in point contact in all directions.

[0050] The pressure-receiving concave curved surface (5) is supported by the pressure-receiving steel balls (3) and as soon as the earthquake occures, the linkage of earthquake motion to the building is isolated by the rolling slide of pressure-receiving steel balls (3).

[0051] As to the structure of the foundation, a concreate covering all the surfaces of top and bottom steel plate interposed by the balls except the curved surfaces of the top and bottom plates constitutes a column (9) and the same applies to the foundations. The column (9) including the pressure-applying convex-curved surface is jointed to the foundation including pressure-receiving concave-curved surface by strain adjust ing bolts and nuts.

[0052] When the pressure receiving balls (4) are rolled by the earthquake motions small balls (3) interposed throughout the whole periphery of said balls (4) are rolled simultaneously, in which, as before described, the rinkage of earthquake motion to the structure or building is isolated by the rolling slide of the pressure-receiving steel balls.

[0053] To cope with jump-up phenomenon caused by directly under earthquake or float-up phenomenon caused by typhoon etc., the hoop (1) is put on the foundation.

[0054] The hoop (1), without striving against linkage of earthquake motion, supports column (9) together with the foundation.

[0055] Because the steel balls (4) moves to the side of higher foundation pressure-receiving curved surface when the building moves due to hurricanes, building mounted on the foundation hoop (1) leans towards the wind prssure direction and increases resistance. In addition, in order to completely achieve functions of this device, materials with properties of (sodium silicate, etc.) are filled with their properties of rust prevention, anti-freezing, and lubrication maintained are filled and functions of isolating earthquake are held simi-permanently.

[0056] The pressure applying and receiving steel plates are HRC50 and are free of dent when tested for withstanding pressure at 1 ton using pressure receiving steel balls.

[0057] Concrete with strength of KGJ cm/700 are used. When this invention apply to the column with cross section of 80 cm 80 cm, the pressuer-receiving force of 3200 ton is obtained.

Structuring Process of the Invention

[0058] 1. Viscous materials with properties of rust prevention is spread and coated onto the plane steel plate on spherical curved iron and steel flame adjusted so as to fit to a projected structure.

[0059] 2. Fit the hole cast (FIG. 9) in a projecting pole of position frame (FIG. 7).

[0060] 3. Insert all small balls (4) into above said holes after closing the holes for balls (3).

[0061] 4. Pulling up the holes cast horizontally (FIG. 9), then, fit a regular hole onto projection pole.

[0062] 5. All large balls (3) are casted in free movement.

[0063] 6. Suffice the NA2S103 to cocrete mortar partition plate by supply pipe, then, steel plate and block composed iron and steel frame are piled on them.

[0064] 7. Concaved and convexed slide blocks are put on press ditch (FIG. 8) and press it by short-term clamp bolt-nut by which concaved and convexed spherical surface are made.

[0065] 8. Construct a provisional concrete frame, then put concrete into above structured frame.

[0066] 9. When applying weight reached to a exceeding level of steel plate repulsion, provisional frame is solved.

[0067] 10. Fundamental hoop is connected to combined hoop tightning frame by scale of ¼ (FIG. 6). By this processing the hoop aligns with earthquake motion and wind pressure successfully. 

What I claim is:
 1. A support structure for isolating earthquake motions, comprising: a pressure receiving concave-curved steel plate connected with a structure foundation; and a pressure applying convex-curved steel plate connected with a foundation column oppositing to said concave-curved steel plate, thus forming a gauge portion between them; a means of interposing two types of pluralities of steel balls in said gauge between the concave-curved steel plate and convex-curved steel plate; a means of arranging one type of said balls to be made with (less accuracy) smaller diameter than that of other group of balls: a means of surrounding two types of pluralities of steel balls with aligning frame so that they are mounted to come in point contact in all directions; a means of isolating a linkage of earthquake motions by confrictless rolling slide of said types of steel balls, a group of pressure receiving larger balls and a group of pressure applying smaller balls; a means of covering all the surface of top and bottom steel plates except said curved surfaces with concrete, thus forming a column as a foundation of a constructure; a means of jointing said column including said pressure applying convex curved surface with a foundation of a structure by bolts and nuts; a means of isolating the linkage of earthquake motions to the structure by unified simultaneous rolling of said two types of balls;
 2. A support structure for isolating earthquake motions as claimed in claim 1; a means of moving the structural column vertically by foundation pressure receiving curved surface thereby, stops a propagating movement of earthquake by shock absorber effect of spherical level difference (energy generated), by which isolating the earthquake motion and stopping the free movement.
 3. A support structure for isolating earthquake motions as claimed in claim 1; a means of giving the foundation hoop a function of suppress the foundation column not to remove from the pressure receiving balls when jump-up phenomenon caused by directly under earthquake or float-up phenomenon caused by typhoon, in this case the hoop is put on the foundation. 